E-commerce site + Cloudflare Tunnel | Is it safe?

Hello.

I am locally hosting our small e-commerce site at home to save money from hosting.

Recently, our e-commerce site was experiencing a DDoS attack originating from 700+ public SOCKS5 proxy servers, and our router suddenly lost its signal to the nearby NAP box of my ISP.

How to mitigate the DDoS attack? It’s traumatizing. I skipped my online classes due to a loss of internet connection.